Home / 15,694.26-21,660.62-12,114.39

Finding the Fourth Proportional to 15,694.26, 21,660.62 and 12,114.39

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Solution

The fourth proportional to 15,694.26, 21,660.62 and 12,114.39 is: 16,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.26 : 21,660.62 = 12,114.39 : x
  2. Step 2: Convert to fraction form
    15,694.26/21,660.62 = 12,114.39/x
  3. Step 3: Cross multiply
    15,694.26x = 21,660.62 × 12,114.39
  4. Step 4: Simplify right side
    15,694.26x = 262,405,218.98
  5. Step 5: Solve for x
    x = 262,405,218.98/15,694.26
  6. Step 6: Final answer
    x = 16,719.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.